Why all the dislike of SCSI? It was standardised long before ATAPI so the reader part of the CD will work with generic SCSI CD drivers available for all OSes, and while the writer bit might be proprietary that early on, any software from that era will support it much better than ATAPI because that's all that was available at the time. I think you'd have more trouble using period-correct software from 1993 with an ATAPI drive, really.
There are also plenty of ISA SCSI cards around - I just picked up a VLB SCSI-2 card for my 486 for US$16+shipping which I was pretty pleased with.
Having actually bought a brand new Matsushita CW-7502 CD-R back in 1998 (justifying the AU$700 price tag - equivalent to €820 / US$872 in 2017 money - with what I lost after a recent hard drive crash), even then SCSI was the only real option. It even came in a bundle with an Advansys ISA SCSI card.
Despite all the talk of "voodoo" around SCSI, I've always found it much easier to work with. IDE has given me no end of trouble, especially if I'm using early ISA adapters, or devices that work only as a standalone master and break when there's a slave on the same cable, or don't work properly in slave mode, or work with everything except the one device I want it to share a cable with, the list goes on. But SCSI - as long as you have the bus terminated properly, I can't even recall a single issue I've had over the years.
As for availability, I'm thinking about this one, a SCSI Sony caddy CD-R from 1996 for AU$30 + shipping. I have plenty of SCSI drives and burners though so as fun as the caddy would be, I may have to let it go...